150 533 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
28715703064003371892654149977857	32	104.5	2015-12-15 07:59:26

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	278 / 1566

Estimated T-Level: 30.9 ⓘ

TF below 2^98 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Gary Gostin	30E1	0
Verified (Factored)		Amdahl 6 - 1989	29F6B0E1	0
Verified (Factored)		Brian J. Beesley	6784591069F6B0E1	0
Verified (Factored)		Eivind Triel	6784591069F6B0E1	23366
Verified (Factored)	2001-01-14	Brian J. Beesley	6784591069F6B0E1	86954

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	0F7102E35637282F	1	0	1	3
Verified	2017-10-11	kkmrkkblmbrbk	0F7102E35637282F	1	120327	1	3
Verified	2020-04-17	Oliver Kruse	C9DCF707E427126E	1	25093	5	3
Verified	2024-02-03	Wentao Huang	C9DCF707E427126E	1	1941	5	3

History

Date	User	Type	Result
2024-02-03	Naegi Makoto	CERT	PRP Certification Proof certified good
2024-02-03	Wentao Huang	C-PRP	M150533/28715703064003371892654149977857 : C9DCF707E427126E PRP proof power = 5 PRP: Verified Proof certified good
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-07-03	ATH	NF-PP1	Start=2/7, B1=50000000, B2=5000000000
2020-04-17	Oliver Kruse	C-PRP	M150533/28715703064003371892654149977857 : C9DCF707E427126E PRP: Verified PRP without proof (small exponent)
2017-10-11	kkmrkkblmbrbk	C-PRP	M150533/28715703064003371892654149977857 : 0F7102E35637282F PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M150533/28715703064003371892654149977857 : 0F7102E35637282F PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M150533/28715703064003371892654149977857 : 0F7102E35637282F PRP without proof (not generated)
2015-12-15	bam	F-ECM	Factor: 28715703064003371892654149977857 / (ECM curve 2, B1=1000000, B2=100000000)
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2013-09-09	lycorn	NF	no factor from 2^60 to 2^61
2013-05-24	alpertron	NF-PM1	B1=100000000, B2=2000000000, E=12
2011-03-04	Joss	NF-PM1	B1=10000000
2009-01-25	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-10	axn	NF-PM1	B1=5000000, B2=200000000, E=12
2008-12-30	Sturle Sunde	NF	no factor from 2^58 to 2^59